|Ordered||14 Oct 1941|
|Laid down||18 Dec 1942||Blohm & Voss, Hamburg (werk 200)|
|Launched||17 Sep 1943|
|Commissioned||4 Nov 1943||Oblt. Willi Müller|
|Successes||No ships sunk or damaged|
Decommissioned on 29 September 1944 at Königsberg, after being badly damaged in the Baltic Sea off Pillau by a air-laid mine in the British minefield Tangerine on 31 August 1944.
Cannibalized for spare parts at Schichau-Werft in Königsberg after 1 October 1944. Hulk towed to Neustadt on 25 January 1945, but stranded off Rixhöft, in position 50.40N, 18.20E, on 28 January and was blown up in March 1945. Wreck broken up.
This boat was fitted with a Schnorchel underwater-breathing apparatus in April 1944.
Men lost from U-boats
Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-1000 did not suffer any casualties (we know of) until the time of her loss.